title: Single chain magnets based on the oxalate ligand.
abstract: The anionic oxalate-bridged bimetallic chain [Co(H2O)2Cr(ox)3]- shows slow relaxation of the magnetization, typical of the so-called single-chain magnets, when crystallized in segregated layers in a mixed salt with the supramolecular cations [C12H24O6K]+ and [(C12H24O6)(FC6H4NH3)]+. This is the first time that such phenomenon has been observed in an oxalate-bridge material. In view of the wide synthetic versatility exhibited by the oxalate ligand, it opens the door for the realization of a complete family of SCM materials whose physical properties might be tuned by the suitable replacement of M3+ ions within the chain. The information extracted from the systematic study of these compounds should provide important information concerning the main parameters that affect the slow-relaxation phenomena in this sort of 1D nanomagnets.
authors.affiliation: Universidad de Valencia, Instituto de Ciencia Molecular, Polígono de la Coma s/n, 46980 Paterna, Spain. eugenio.coronado@uv.es
authors.forename: Eugenio
authors.initials: E
authors.lastname: Coronado
authors.forename: José R
authors.initials: JR
authors.lastname: Galán-Mascarós
authors.forename: Carlos
authors.initials: C
authors.lastname: Martí-Gastaldo